Identify the key characteristics and advantages of 360-degree feedback appraisal system.

This is an appraisal system that utilizes feedback from superiors,peers,subordinates,and possibly customers to establish a balanced and objective input on specific performance measures.These systems have several key characteristics.They use standardized forms that provide numerical ratings of the ratee along numerous dimensions.Individual raters,exclusive of the supervisor,are assured of anonymity so that they feel free to be candid about their input to the ratings.The system also employs several procedures to screen out invalid data.It is claimed that their advantages include: (a)they are more accurate in having numerous raters,which results in information from a variety of perspectives; (b)they are more credible to the recipient,as the ratees may believe a single rater to be wrong or biased,but certainly not all of them; (c)they may be more valuable for behavioural change,since work associates are likely to more specific about behavioural feedback; and (d)they may be more motivational,since peer pressure may motivate constructive behaviour changes.